The green ash, Fraxinus pennslyvanica, is unique from other trees for its specific characteristics of opposite branching and a compound leaf. Few trees have opposite branching. The compound leaf has approximately 5-9 leaflets per leaf and is pinnately compound.
The tree is native to eastern and central North America. It is a medium sized deciduous tree, 40-50 feet tall and a spread of about 80 feet. The autumn color is golden yellow and usually one of the earliest to change. The seeds provide food for many kinds of wildlife. The wood is popular for making electric guitars.